12328549156 has 135 divisors (see below), whose sum is σ = 27936622203. Its totient is φ = 4756696560.

The previous prime is 12328549153. The next prime is 12328549169. The reversal of 12328549156 is 65194582321.

The square root of 12328549156 is 111034.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (12328549151) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 119694601 + ... + 119694703.

Almost surely, 2^12328549156 is an apocalyptic number.

12328549156 is the 111034-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12328549156

12328549156 is an abundant number, since it is smaller than the sum of its proper divisors (15608073047).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12328549156 is an equidigital number, since it uses as much as digits as its factorization.

12328549156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 123 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The spelling of 12328549156 in words is "twelve billion, three hundred twenty-eight million, five hundred forty-nine thousand, one hundred fifty-six".